A smaller portrait of Cromwell, a circular painting with a green background, and enclosed in a painted square stone frame, showing the head only, is described by Wornum and Woltmann.[122] It was at that time in the possession of Captain Ridgway, of Waterloo Place, London.[123] It is 12 in. square, and differs in some details from the Tyttenhanger portrait. Both writers appear to regard it as a genuine work by Holbein. A portrait of Cromwell was one of the few works mentioned by name by Van Mander when describing De Loo’s collection of Holbein’s works:—“the old Lord Crauwl, about a foot and a half high, taken unusually artistically by Holbein.” Although the dimensions do not quite agree, Woltmann suggests that Captain Ridgway’s little picture was the one thus described. According to Mr. Lionel Cust,[124] the few portraits of Cromwell which have any claim to authenticity are all traceable to Holbein, and fall into two groups, or at most three, each group deriving from an original portrait by him. In the first class are the Tyttenhanger picture and others based directly upon it. This portrait, he says, descends direct from Sir Thomas Pope, one of Cromwell’s instruments in the suppression of the monasteries. The second group includes such pictures as the one in the National Portrait Gallery (No. 1683, 16¾ in. × 13 in.),[125] purchased in 1897, of which there are several versions in existence, though there is no portrait of this type so far traced which can be attributed to Holbein himself. The pictures in this group show the head and shoulders only, and differ in minor details from the Tyttenhanger type. The look of craftiness is accentuated, and he is shown with a slight grey whisker, and the pointed arch of the eyebrows is more strongly marked. The third group, which is closely allied to the second, includes the recently-discovered miniature in the late Mr. J. Pierpont Morgan’s collection,[126] and the medal in the British Museum, of the date 1538, which, according to Mr. Cust, is evidently based on a drawing by Holbein.[127] There was a portrait of Cromwell in the Arundel collection, which is entered in the inventory as “ritratto de Cromwell.” This was evidently the one in the possession of De Loo, which afterwards passed, with other works by Holbein, from that dealer’s collection into that of the Earl. Hollar’s engraving,[128] which is not signed or dated, does not appear to have been taken from the portrait at Tyttenhanger, but was most probably based upon the Arundel picture; but whether that picture was an original by Holbein, now lost, or one of the numerous versions now in existence, it is impossible to say. One of these versions is in the collection of M. Ch. Léon Cardon, Brussels. Footnote 122: Woltmann, 212, and i. 376; Wornum, p. 287. Footnote 123: Now, according to Dr. Ganz (_Holbein_, p. 241) in that of M. Kleinberger, Paris. Footnote 124: