I don't know the provenance of these items, other than that they were purchased from the estate of a well-known collector. I don't think I can afford to have all of them authenticated, but I will certainly offer a full, money-back guarantee to anyone who purchases them. I'm willing to risk my reputation on the fact that these documents are original. I've yet to photograph that one, but the document is incredibly detailed and, without question, quite old. For example, I have a schematic drawing of a Gatling Gun carriage that is drawn entirely in pencil. If they're fakes, someone went to great lengths to reproduce them. The type of paper used, the general wear & tear, the pencilled writing, etc., etc.

I'm certainly no expert either, but upon actual inspection, everything about these documents points to originality. I feel very confident in stating that I believe these documents to be original, period items. I've also seen the reproduction gatling gun blueprints & schematics. Based on the prices I've seen for other, similar signatures, I think it might be worth the cost of authentication. I'm considering sending this item off to have it authenticated. I've tried comparing the Rockefeller signature with others that I've found on the net. what about these loan certificates from Philadelphia? are these things that I should have authenticated & if so, how do I go about doing that? I do believe the signature could be worth some pretty good money, but what about the blueprints and the watch logs? I'm considering listing these items this week, but I want to be sure I have things set up properly. This document appears to have William Rockefeller's signature on back. In addition, there is a piece of 'Kansas, Missouri, Texas Railway Company' stock from 1889. I also have some Port of Philadelphia watch logs from Feb. I have not photographed this document yet. US Navy Gatling Gun Carriage, Colt's Armory, Nov. I also have a 20' x 36', pencil drawn schematic of a 'Cal. This document measures 22.5' tall x 24.25' wide and is marked 'Wind Gauge Sight for Gatling Guns. B.' There are many other written technical details along with hand-written penciled notes.

This document measures 17 5/8' tall x 29.75' wide and is marked 'Details of the 30. This document measures 17' tall x 29.5' wide and is marked 'Gatling Gun. This document measures 10' tall x 24' wide and is marked 'Gatling Gun Calibre. Last month I purchased a number of documents among which were these blueprint & schematic drawings of the Gatling Gun.

Civ 5 gatling gun