Mullard Magic: For All Your Vintage Valve and Radio Needs!
10A/7719 Bakelite Muirhead Dial & Slo-Mo Drive, 50:1 Reduction as used in R103 set
10A/7719 Bakelite Muirhead Dial & Slo-Mo Drive, 50:1 Reduction with thick silvered brass dial scale marked 0 - 110 and panel vernier blocks