Philips Video Cassette VC-45 Video editing equipment

Set of 3 tapes, one of which is broken, the other two are complete. Note they have not been tested and I don’t know if they work, nor do I know what recording exists inside the device.
This is an original Philips VC-45 video tape, a pioneer format introduced in 1972 for consumer recorders [5.3]. VC-45 tapes were manufactured in Austria and used 0.5-inch chromium dioxide magnetic tape [5.1, 5.3]. This specific format is a collectible item, as it was later replaced by formats such as Video 2000 and VHS [5.11].
I don’t know if it works. I don’t know what is recorded.