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To Mr Maylin No 113 in the Minories London Farnacres 6 May 1775
Sir.
We have this day reced yours of the 3rd inst and you are very right in the dimensions, only you mention one circumstance which we think you have apprehended wrong, you say ‘Pipe to drop a little on the lower side’, now the Pipe is to drop a little on the upper side in order to throw the blast downwards, the bore is to be round, or nearly so, being for Smelting Bellows.
Since the Year 1766 we have got some experience therefore take this occasion (if not too late) to desire you, in putting on the Leather, to give a greater play than usual to the lower Board, in Bellows of these dimensions, tho the doing that should occasion its being taken from the upper Board. We would not care if the play of the lower Board was near as large, as in large Smelting Bellows of two feet longer, even tho the play of the upper Board was not more than 2/3rd of that of the lower but stil we would keep to the same total height in the Leather as the breech, as is usual in the Bellows of the six we have ordered.
The Bellows we had of you in 1766 have turned out very well, but about 3 months since all the four pair of Smelting Bellows were cut in the Night, by some evil minded Person or Persons that we have not yet found out; so that they have cost between 20 and 30 Pounds to repair them.
We applied to Mr Holmes to enquire for you not knowing, at this distance of time, whether the business might be carried on in the same Channel.
We are etc
N W Junr J S
