L55A1 7.62mm D.P. LMG

Has anyone got a picture of a Drill Purpose 7.62 LMG they can post please ?
I know they are mentioned in EMERs and there are drawings for them and also that they had an NSN assigned to them but have never come across one.There also doesn't appear to be one in the R.A. collection at Leeds.
The nearest I have seen were SEME Borden trianing aids and engraved as such.
......were any actually done ?
303 D.P. Brens still seemed to be in use with cadets until the end ,were these kept in use instead of specific 7.62 LMG D.P.guns ?

ATB Kevin
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