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20 or 30's car alarm

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New User

Jun 12, 2011, 8:23 PM

Post #1 of 5 (3435 views)
  post locked   20 or 30's car alarm  

i was hoping someone could help me out. i bought a box of random stuff at an auction and found a few model T parts and a few parts i cant figure out what they are/value. it is a stop-thief auto alarm, no year, make or model #. comes in a brown envelope with the instructions printed on the front. its made by Penn Greg Mfg Co out of Minneapolis, Mn. It is basically a pendulum with a lead weight that connects to your horn with a wire. pretty unique but i cannot find any information on the mfg co or name. there is no brand either, I am assuming it is stop-thief.

i have a picture but i cant post it on here for some reason, but i can email it to you if that helps.

any information would be helpful!


Tom Greenleaf
Ultimate Carjunky / Moderator
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Jun 16, 2011, 6:18 AM

Post #2 of 5 (3410 views)
  post locked   Re: 20 or 30's car alarm  

Yikes - 20's and 30's!!!! Would be 6v pos or neg ground - hardly have a chance,



Jul 4, 2011, 7:21 AM

Post #3 of 5 (3337 views)
  post locked   Re: 20 or 30's car alarm  

i never like old is gold things....

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(This post was edited by Hammer Time on Jul 4, 2011, 7:28 AM)

New User

Mar 27, 2014, 3:03 PM

Post #4 of 5 (1626 views)
  post locked   Re: 20 or 30's car alarm  

Just stumbled across your post while trying to find more info about a built in mailbox on my 1940s home. The company Penn-Greg was a St Paul MN Mfg company in the 20-30s. Interestingly most of what I've found on them is patents for built in mailbox variations. The credited inventor's name is Bernard t. Pennig. Perhaps ol' Bernard was dabbling in car inventions in addt to his mailbox invention.

Hammer Time
Ultimate Carjunky / Moderator
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Mar 27, 2014, 3:09 PM

Post #5 of 5 (1621 views)
  post locked   Re: 20 or 30's car alarm  

This thread is nearly 3 years old.

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