Tape Balances, warwick springs

- 2a/1 beclawat tape balances; strength stamped on casing. Either side exit or bottom exit tape. - 2a/3 tape balance - tape strength given as single digit stamped at end of tape (weight supportable in pounds, eg '4' or '5' etc) - Warwick springs - spring gauge, length, diameter and coils per 10mm / inch required. A sample is desirable.