Pictures taken from slide viewer, not a scan. So your slide will actually be of much higher quality than shown in pictures. Although it may look like there is a spot on the slide it is only dust that needs to be blown off.
eBay
Colour Slide.
eBay
Original slide.
eBay
All the slides are dated from April 1984 which is the date they were processed so most likely this trip took place in 1983 to early 1984.
eBay
(Heavy Duty Slide Rollers – 130kg Capacity. High-quality Fridge Slide. Heavy Duty Design, Solid Steel Construction. One on each side.). Full Extended Length from 780 to 1540mm. This Item can also be used for Generators, Battery Boxes, Weber BBQ, Tool Boxes etc. etc.
eBay
Previously unseen, original, new, slide, in plastic mount.
eBay
Application: Fits nearly any bunk trailer, including 2in, 4in, 6in bunk trailers. PRACTICAL TOOL: Trailer bunk slide pads ensures quick loading and unloading of boats with minimal effort, making it easier for boats to load and unload on slopes!
eBay
Loop Width: 50mm. 1x 4 Point Quick Release Buckle. A few words to assist your buying experience. Material: Hard and Durable Plastic.
eBay