Old cold frame (Coombe Dingle BS9)

Old cold frame (1960s?) made from aluminium and glass with sliding lids (see photos). Two or three of the glass panes are missing. Measures 244cm across, front to back is 74cm, height at front is 37cm, height at back is 48cm. The screws are rusty so a bit of a task to dismantle. Would need a couple of strong people to lift it, with a van. Might be suitable for an allotment and perhaps just the glass panes could be useful if not the whole thing? We are currently trying to remove the glass to make it safer to move.