Check the listing for details. GENUINE 1961 CATERPILLAR D7 TRACTOR "HYDRAULIC CONTROLS" SPECIFICATIONS BROCHURE. Condition: Used. Listed at 26.95 USD. Here we have up for sale an ORIGINAL 1962 Caterpillar D7 Tractor "171, 172, & 173 Hydraulic Controls" Specifications brochure. This obscure 1-sheet brochure has very detailed information about the specifications for these classic D7 tractor hydraulics. This has NO tears or tatters and is in VERY GOOD+ overall condition. We have acquired a massive 400+ Caterpillar brochure stash from a one time CAT dealers' estate. Please check out all of our other CAT auctions as there are some rare, dealer-only pieces. These date from the 1930's-1980's, are mostly in fantastic shape, and will all sell at AUCTION (some people have forgot what Ebay started from). These are all starting at $19.95 with NO reserve & FREE S & H. International buyers will only pay one shipping fee, no matter how many you buy. Happy Holidays and Happy New Year! Thanks for viewing.............Triple K