RTI Magazines

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   I received some used mags from RTI today. I think I bought the last 6. They were all absolutely caked in cosmoline. After a couple hours of cleaning, here’s what I THINK I got (I’m still a carbine newbie). Curious if anything is super collectible and should be tucked away instead of getting tossed into my range bag.
Stanley works- type 2 base -soldered poor condition
Mattatuck mfg.- type 5 base -good condition
Bridgeport Metal goods- type 1 base- very good condition
JL Clark- type 5 base- new
Union hardware- type 5 base- good condition
Autoyre- type 2 base w/ VERY faint A- poor condition 

http://photobucket.com/share/5b7a5d27-ede2-43ef-b35b-7dcb2df7570f

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Unit91 Members Profile Send Private Message Find Members Posts Add to Buddy List Recruit Joined: Dec 20 2025 Location: Missouri Status: Offline Points: 16	Post Options Post Reply Quote Unit91 Report Post Thanks(0) Quote Reply Topic: RTI Magazines Posted: Jan 13 2026 at 11:11pm
	I received some used mags from RTI today. I think I bought the last 6. They were all absolutely caked in cosmoline. After a couple hours of cleaning, here’s what I THINK I got (I’m still a carbine newbie). Curious if anything is super collectible and should be tucked away instead of getting tossed into my range bag. Stanley works- type 2 base -soldered poor condition Mattatuck mfg.- type 5 base -good condition Bridgeport Metal goods- type 1 base- very good condition JL Clark- type 5 base- new Union hardware- type 5 base- good condition Autoyre- type 2 base w/ VERY faint A- poor condition http://photobucket.com/share/5b7a5d27-ede2-43ef-b35b-7dcb2df7570f

W5USMC Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: Apr 29 2017 Location: Missouri Status: Offline Points: 3640	Post Options Post Reply Quote W5USMC Report Post Thanks(0) Quote Reply Posted: Jan 13 2026 at 11:21pm
	All are pretty common mags, the JL Clark Rock-ola mag may have a bit of a collector value but nothing crazy.
	Wayne USMC Retired NRA Life Member

Matt_X Members Profile Send Private Message Find Members Posts Add to Buddy List Hard Corps Joined: Nov 10 2020 Location: Phila, Penn Status: Offline Points: 1047	Post Options Post Reply Quote Matt_X Report Post Thanks(0) Quote Reply Posted: Jan 14 2026 at 7:31am
	First one was for Rockola by J.L. Clark SY- B may be Stanley for IBM, I'm not sure if Dan et al have that one as a Stanley or one o fthe Seymours. Small U is a Union direct to US Government MN was for NPM This Page helps decipher most if not all. But there's a few corrections since its been posted and a few questions we're trying to figure out - as always! https://www.eqth.net/mirror/carbinemags/ Besides rarity, some of us try to match the mags to the prime manufacture. So for example I looked for SG and U magazines, to go with my SG and U. Someone into tools might like to have an SW for the Stanley connection, etc. Edited by Matt_X - Jan 14 2026 at 7:54am