TreaderSteve
Senior Retro Guru
Could be a bit of fun - never heard of them, appear to be an old Taiwanese manufacturer that now makes stuff for 'whoever'
https://www.ebay.co.uk/itm/Tandem-21-Sp ... ondition=4
https://www.ebay.co.uk/itm/Tandem-21-Sp ... ondition=4
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