"Hollow" medals?

I recall a thread in which a forum member described a gold medal that was constructed from two uniface strikings joined with a ring.
Here's a gilt bronze example described as "Comprising two uniface strings united at the edge by a collar."
Any other examples out there?
Here's a gilt bronze example described as "Comprising two uniface strings united at the edge by a collar."
Any other examples out there?

British Historical Medals https://photos.google.com/share/AF1QipOBxKspf6DVpvjgXptTKSr_tZcyeWIRJRBX7ZklmSP59IKhtiAkgF2NB0-Vxyhz1w?key=OGdSRXJtZWdsb2VodmNEdWJ4VF9jY01YdmJtRTlB
Conder Token Gallery https://photos.google.com/share/AF1QipMCiunai6NjOxoo3zREkCsAnNm4vONzieO3u7tHyhm8peZmRD_A0MXmnWT2dzJ-nw?key=Rlo2YklUSWtEY1NWc3BfVm90ZEUwU25jLUZueG9n
Conder Token Gallery https://photos.google.com/share/AF1QipMCiunai6NjOxoo3zREkCsAnNm4vONzieO3u7tHyhm8peZmRD_A0MXmnWT2dzJ-nw?key=Rlo2YklUSWtEY1NWc3BfVm90ZEUwU25jLUZueG9n
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1889 Royal Agricultural Society Exhibition at Windsor
The show was held in Windsor Great Park from the 24th to 29th of June 1889. The Prince of Wales acted on behalf of Queen Victoria who was President of the Society for that year. The Queen attended on the 27th and 28th and also knighted the Director of the Show on the 30th. The medal is hollow and was made in two halves, making this an unusual British medal for that period. It was designed and executed by Countess F. Gleichen. The reference for the medal is BHM#3379 and is shown only as being struck in bronze. It is also designated as very rare. 77mm dia and it weighs 114.3grams. It has a NAVY blue leather medal case... on the top it has a gilt CROWN.
This medal is 22kt GOLD. It was presented to the Director when he was Knighted by the Queen, making this medal unique. Verification is in The administrative records of the Society for this period is at the Museum of English Rural Life at Reading University, Within the the minute books of the period under B I 14 and 15 and B III 5 and 6.
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