Ron van Maanen has the list of 26 guns carried by Ruth Jacobsz Buys' ship Hollandia

Ron van Maanen's list of Rotterdam ships has a list of 26 guns that were carried by the Hollandia 0n 8 April 1653: 2-12pdr, 12-8pdr, 6-6pdr, 4-4pdr, and 2-2pdr guns. I was thinking that this differed from the list that Carl Stapel had found, but it does not. Apparently, the 2-12pdr were iron guns, while the rest were brass ("metaal"). By the way, Hendrick de Raedt's pamphlet gives the Hollandia's crew as 105 men (presumably in August 1652). Sources:

1. Ron van Maanen, unpublished manuscript "Oorlogsschepen" van de admiraliteit van de Maze in de zeventiende en achttiende eeuw, undated
2. Hendrik de Raedt, Lyste van de schepen van Oorloge onder het beleyt Admirael Marten Harpersz. Tromp, 1652
3. Carl Stapel, unpublished manuscript "Lijst van Nederlandse schepen in maart 1653", 2006