This is a mid-production model R L Drake AC-4 AC power supply for all Drake SSB transmitters and transceivers, including the TR-3, TR-4, TR-4C, TR-4CW as well as the TX-4, TX-4B and TX-4C models. Serial number is 27,086.  Also included are the 2 rubber feet needed to secure the AC-4 in the MS-4 speaker cabinet. The originals are practically UNOBTANIUM! 

Packing, Shipping and Insurance Information - United States Bidders:  packing, shipping and insurance is $20.00  (CA, OR, WA, NV, AZ, NM, UT, and ID is $25.00) because of the size and weight). AK, HI and PR a bit more).  

Overseas bidders: International shipping can only be done through the eBay Global Shipping Program.