The main photo is the 3 trays on top of each other.
eBay
Hot selling Digital Film Scanner Light Box Holder For 135 120 4X5 Slide Film Negative Viewer cameras accessories
Aliexpress UK
About 28 films in total.
eBay
Digital Film Viewer Light Box Photo Slide Film Holder For 120 135 4X5 Negative camera accessories
Aliexpress UK
9-Phototec Pan 100 BW negative. 5-Ilford P3 surveillance iso 400 BW negative. 11-Adox Silvermax 100 BW negative. 12-Kodak Hawkeye iso 400 BW negative. 13-Orwo NP 55 iso 50 BW negative. 14-Ilford HP5+ iso 320 BW negative.
eBay
135 Reversal Film Frame Plastic Vintage Film Frame for 135 Film Lantern Slide Camera Scan Film Negatives Magic Lantern Film
Aliexpress UK
New estate finds added daily. Why Zenith Antiquarium?.
eBay
135 Reversal Film Frame Plastic Magic Lantern Film Vintage Film Frame for 135 Film Lantern Slide Camera Scan Film Negatives
Aliexpress UK
MATIN 35MM SLIDE MOUNTS M-9426 - BULK (NO BOX). MATIN 35MM 2-PART GLASSES SLIDE MOUNTS. Size of slide: 24 x 36mm. Two-part glasses mounts. Unites the convenience of rapid mounting. Top quality materials.
eBay
JJC 35mm Negative Film Slides Digitizing Adapter LED Light Negatives Scanner to Digital Photos Converter for Nikon D850 Sony
Aliexpress UK
MATIN : 6X4.5 SLIDE MOUNTS - BULK (NO BOX). Original Matin. FORMAT:7X7, SIZE OF SLIDE:60X45MM. Size of slide: 60 x 45mm. Unites the convenience of rapid mounting.
eBay
10pcs 35mm 120/135 Negatives Film Storage Pages Acid-free Bags Black&White Color Film Slide Preservers Pages Long-term Storage
Aliexpress UK
Mostly Kodak, pretty sure all Kodak. The casings are normal size. Mix of both. 60 slides included.
eBay
JJC 35mm Film Strip Holder for Nikon ES-2 Film Digitizing Adapter 35mm Negative Holder Guide Clip Slide Scanner Accessories
Aliexpress UK
Mostly Kodak, pretty sure all Kodak. The casings are normal size. Mix of both. 60 slides included.
eBay
QM3-2694-000 QM3-2695-000 QC2-5902-000 Photo Film Guide Sleeve Mount Holder Slide for Canon 8000F 8400F 8800 8800F 9000 9000F
Aliexpress UK