The Savage Arms Revelation model 115 is worth $150 in good condition. Revelation was a Western Auto name. The Western Auto is really a Savage 46.
Your best bet is to find a gunsmith and ask for help.
J.B. Wood's book on auto pisto disassembly
70
The Savage Models 1907, 1915, and 1917 were all available in .32 auto and .380. They also manufactured a small number of .25 autos called the 6.35 mm as well as a Model 1905 in .45 ACP for the US Army trials.
I recommend the Gun Digest Book of Automatic Pistols Assembly/Disassembly (Kindle Edition). Two are available on Amazon: one by the venerable J.B.Wood and the other by Kevin Muramatsu. Both of these books include the Savage 1908 (the 1915 and 1917 pistols are similar).
I think the Savage 755 looks a lot like a Browning A5
Depending on the condition of the pistol, the value can be anywhere from $100 to about $400.
Your Browning Belgian Auto 5 12, 19406 was produced sometime between 1902 and 1998. The Browning Auto 5 was manufactured by Browning Arms, Fabrique Nationale, Remington Arms, and Savage Arms.
On the Hi Point Firearms website, there is a section for downloading product manuals, including their .380 pistols. See related link.
Roughly $450-$600, depending on condition, exact model.
Springfield out of Westfield, Mass.