This listing is an original 35mm colour Slide with the following written on the mount which is the only information available about the slide subject

C-123 Provider 40565 N123K Galveston TX 1989 Peter R March

It is held in a Plain mount

Part of the Peter R March (PRM) Collection which includes his own photographs from visiting 1000's of Airshows and Airports spanning over 6 decades

Andrew P March (APM), Daniel J March (DJM) and from other uncredited sources

The watermark is not on the actual slide