Cooney mentions in a letter to his niece that 530 coins were made:

When peace was proclaimed between the British and the Boers (papa will explain to you) we had only fairly started to make the crude coins of which enclosed is one, and all we made when the British supplanted the Boers in the Transvaal by treaty was 530 Coins.¹⁰⁰

Reid says in his war memoirs that 400-500 pound were distributed amongst the Boers ¹⁰¹and that the rest was handed over to the government. According to Kloppers, General Lukas Meyer took 80 coins with him when he left for Vereeniging for the peace talks.¹⁰² A financial document recently discovered, disclosed that £100 veldpond were handed, to Mr van Velden, the secretary of the ZAR Executive Committee, during the first week of May 1902,

Barter wrote in a letter, dated 6 September 1932 to John Hunter McLea, that gold to the value of more than £500 pound was used.¹⁰³

In an autographed signed letter addressed to Dr A Kaplan, General CH Muller states that 525 Veldpond were produced. ¹⁰⁴

(See Annexure A)

The other document is a financial statement for the period 10 May to 1 June 1902. signed by Barter, Pienaar, Joubert and Kloppers. It states that raw gold of the value of £426-19 (142-6-14 ounce) was handed over to the Mint Master in May from which 525 Veldpond as well as a balance of gold to the value of £144-16-0 were received at the end of May.
(See Annexure B)

The expenses paid (10 May-1 June 1902) , were the following:

The conclusion that can be drawn from these to financial statements is that 145 Veldpond were minted from April up to 9 May and 525 up to 1 June 1902. Total 525.

According to Kloppers, they continued their work until 7/8 June 1902 and produced a total of 968 Veldpond. It seems as if he interpreted the financial statement of the treasurer wrongly. The value of the raw gold used from 10 May to 1 June plus the coined gold for that period ads up to a total value of gold of ₤967-2-6 which is something different from the total figure of Veldpond coined at the Field Mint. (See Annexure B)

The burghers did stayed on at Pilgrim's Rest up to 7/8 June waiting for General Muller to return form Vereeniging, to lead them in laying down arms at Potloodspruit but the Boer Republics and the Field Mint ended together on 31 May 1902. The financial statements reflects that the Field Mint came to a standstill when peace was declared. This is confirmed by  Reid¹⁰⁷ as well as Cooney.¹⁰⁸Engraving the blank veldpond and making the decorations for the medals could have been done during the first week in June.