67-69 turn signal switch.

I carefully removed one from a 67 column intending to ship it the the UK for a member here. Tested it, good to go. Then just before boxing I decided to use compressed air to blow some of the dust/dirty off it. The tiny spring under the horn contact was so rusty that it took flight. I could only apologize to the buyer. Glad it broke here instead of there. My point being beware of 50 year old parts.