SOUTH DEVON ORGAN CIRCLE - a vintage enamel badge (1960's / 1970's)

Postage is extra.

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For sale is a membership(?) badge of the SOUTH DEVON ORGAN CIRCLE (SDOC).

I presume the SDOC was a club for enthusiasts of non-piped organs but was unable to find any information about the SDOC and it's likely the club has been closed for some time.

If anyone has any information about the South Devon Organ Circle or knows what the letters SDDC stand for, I'd be grateful to hear from you.

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DESCRIPTION:
Size: about 1" diameter (25mm).
Material(s): brass metal with 2 enamels.
Finish: tin plated.
Fitting: pin.
Imprint: none.

CONDITION:
Excellent condition. No damage. Pin in working order.
Please see photograph(s), these form part of the description.

POSTAGE:
* Postal costs are extra, additional to the Asking Price
* I always get a proof-of-posting certificate.
* I combine postal costs for multiple items when these are paid for and posted the same time.

RETURNS:
* Return accepted if the item(s) is returned in same condition it left me, then the full Agreed Asking Price will be refunded. Postal costs are not refundable.
* Buyer pays the return postal costs - unless agreed otherwise.

B.3