American Flyer #697 Pressure Type Track Trip

Hello: I have one American Flyer #697 Pressure Type Track Trip. This was made from 1950 to 1954. The trip is in pretty good shape, clean contacts.There is a spot on the lower right corner front cover, some spots on the back cover. The envelope is M2666. Thanks for looking and good luck bidding. I will combine postage on more than one item won. Thanks for looking and good luck bidding. TCA-01 Thanks again