Strange webbing scabbard

[Camsfirie]

Hello folks

I have been reading posts on the forum for a couple of years now and I have picked up some very good information about Pattern 37 webbing as used by the Australian and Commonwealth forces.

I have recently bought this curious webbing scabbard that appears to be a mix of a Pattern 37 style brass tipped tab and a US style Lift-the-Dot closure. I originally thought it could be an alternative No.4 spike bayonet scabbard, but the throat of the scabbard is approximately 7mm to 8mm diameter. I tried fitting a No.4 but the turned brass throat is far too narrow. There are no markings on the webbing or on the brass.

Dimensions are:
Overall length: 340mm
Length from brass opening:265mm
Internal usable length:200mm
Belt Loop: 80mm x 50mm

Could this be a mine probe scabbard? Any help would be appreciated.

Thanks in advance.

[Ubique]

Its an anchor peg for a Gap Crossing measuring line (Hambro Line?). The reel-mounted line was attached to a mans chest with a specially set up webbing with your scabbard slung off the belt. This accomanied by the Gap Measuring Equipment No2 could be set up on a river bank to accurately measure a gap crossing for the Bailey Bridge (or other improvised bridge) using basic geometric principles, in a rather Heath-Robinson way. A rare piece of Engineers equipment. Published literature on this measuring line is hard to find, let me know if anyone does please.

[Camsfirie]

Thanks very much for the information. These were being sold here in Australia on eBay and I got the last one. The seller didn't know what it was for. Hopefully someone will reply with some literature on the scabbard. Again, thanks for your help.