MINT00629: Holograph memorandum on coining from copper bars

MINT00675: Fragmentary holograph note on costs of coining copper

MINT01947: Memoranda on costings for copper coinage

MINT01948: Memoranda on costings for copper coinage

MINT00608: Further to an oral enquiry, explains the hammer test of copper and gives a detailed account of the costs involved in coining

MINT01138: Copy of letter concerning the costs associated with coining copper

MINT00611: Report on copper coinage

MINT00612: Draft of MINT00611 (Mint 19/2/305) with further details on processes for testing copper

MINT01944: Draft of MINT00611 (Mint 19/2/305) with further details on processes for testing copper

MINT00617: An account of experimental coinage of halfpence from bars: the coins have proved substandard. Suspects tin has been added by the melter contrary to instructions. Repeats request for money to repair and equip the Irish Mint [see MINT00611 (Mint 19/2/305)]

MINT00618: Draft of MINT00617 (Mint 19/2/311)

MINT01945: Draft of MINT00617 (Mint 19/2/311)

MINT00619: 'Observations upon the Estimate of the neat profit of coyning 1500 Tunns of Copper into half pence & farthings'

MINT00620: Draft of MINT00619 (Mint 19/2/322)

MINT00621: Covering letter for MINT00619 (Mint 19/2/322), mentioning that the proposal had been referred to him earlier the same month

MINT02087: Draft of MINT00619 (Mint 19/2/322)

MINT00623: Report on copper coinage techniques

MINT00624: Holograph draft of MINT00623 (Mint 19/2/308)

MINT00625: Reply to a Treasury enquiry about copper coinage techniques

MINT00626: Draft of MINT00625 (Mint 19/2/363)