promotional shellac 78 rpm single record

An unusual record that pairs the A sides of two separate issues (27229, 27251) of Christmas songs by some of the label's biggest stars at the time. On first glance, it would appear to be a mis-press with one of the labels being wrong, but each side plays correctly as labeled:

Bing Crosby and Carol Richards  Silver Bells

Andrews Sisters  I'd Like To Hitch a Ride with Santa Claus

Though not marked as a promo (other than the "Please play this side" label sticker, covered by a library number sticker), the hybrid probably was only sent out to radio stations for airplay -- this item coming from the record library of WGN in Chicago.