The Peking and Pamir are indeed similar - though by no means identical. (The Peking is bigger, and I think - though I may be mistaken - she's a little newer.) Much of the rigging of the Peking is applicable to the Pamir, with one large caveat. The Peking languished and decayed for many years before the people at New York's South Street Seaport Museum took her in hand and restored her. By that time much of her deck machinery (the Jarvis brace winches, for example) had been removed, and so far as I know those fittings have never been replaced. So what we see today is just a hint of the total outfit of rigging she used to have.
This particular picture is useful, but (like most pictures) has the potential to be a little deceptive. I haven't been on board the ship for many years, but I think the character doing the Tarzan imitation in the foreground is standing on a wood pinrail that's mounted on pedestals just inboard of the shrouds. His feet, in other words, are three or four feet above the deck. The round-ended pins sticking up from the rail, to the right and left of his feet, are the handles of belaying pins. If the ship were in service, each of them would have a piece of running rigging attached ("belayed") to it.
What's visible above the pinrail, therefore, is just part of the system by which the shrouds are secured.
The guy's holding onto an unidentifiable piece of running rigging with his right hand; his left hand is on one of the topmast backstays.
The round fittings to which the shrouds and the backstay are seized are not deadeyes. (A deadeye has three holes in it - like the eyes and mouth of a skull. Hence the name.) They're thimbles. The u-shaped metal pieces that are bolted to the thimbles are the clevises that form the upper ends of the rigging screws (turnbuckles). The barrels of the rigging screws (the parts that turn, to adjust the tension of the rigging) are obscured by the pinrail at the bottom of the picture. (If the picture was cropped bigger at the bottom, they'd be visible below the pinrail.) Presumably their lower ends are fitted with similar clevises, which are bolted to eyebolts in the deck (or, more correctly, the steel angle irons that form the waterway at the edge of the deck).
The only line whose seizings are visible is the backstay (the one the guy is holding with his left hand). There are four seizings. They appear to be made of light rope, and are painted white.
The flat iron bar that runs between the thimbles is new to me; I'm not sure what the proper name for it is. Its purpose is pretty obvious: it keeps the clevises from turning in the barrels of the rigging screws, thereby loosening themselves.
Just below the guy's right hand, and a foot or so above it, are two of the ratlines. Two more ratlines are visible below those two, though it's easy to confuse them with the black paintwork of the ship in the background. The Peking being a latter-day sailing vessel, the ratlines are made of straight iron rods rather than rope.
The vessel in the background is the 3-masted ship Wavertree. In your version of the picture it may be possible to see some interesting details on her; my monitor's too small to show much.
That's about all I can glean from this particular picture. When the books you've ordered arrive, you'll find lots more. The drawings in Harold Underhill's book will make the working of rigging screws and deadeyes obvious.
Even this small glimpse of the rigging details emphasizes how complex it all is. The basic principles are pretty simple, but a great many small, individual parts are involved. Consider the backstay in the guy's left hand. The whole thing consists (I guess; I obviously can't see the whole setup) of an eyebolt in the waterway, the two clevises, the barrel of the rigging screw, the thimble, the bolts and nuts holding the clevises to the thimble and the eyebolt, the twisted, multi-strand wire that forms the backstay itself, the four pieces of rope that form the seizings around the thimble, another thimble at the upper end, another eyebolt welded to the masthead, a shackle (with a bolt and cotter pin) to hold the thimble to the eyebolt, and (I imagine) two or three seizings to hold the backstay to the thimble. Reproducing all this stuff on 1/150 scale - and doing it over and over and over again for all the shrouds and backstays in the ship - would be quite a challenge. That's why so few modelers do it. I'm not one of them.
Again - get a good clear understanding of what it really looks like, and then concentrate on figuring out how to represent it, without actually reproducing it in every single detail, on the model. That's the key to success in small-scale ship modeling.