This is a rare UK Promo single by Captain Sensible (of The Damned) containing the songs One Christmas Catalogue and Relax, released in 1984. The words Promotion Copy Not For Resale are printed on the record label, on both sides of the disc.  

UK Promo copies were made in very small numbers and this one is especially hard to find now.

The record and picture sleeve are both in mint condition.

Postage cost includes bespoke packaging materials to protect your purchase.