Original Belgian Browning 1910 7.65mm FN Magazine (7 Rounds) Hand Select:Yes It is a wooden handle

It is a wooden handle with a steel fitting that is inserted into the hollow of the cocking handle to give more leverage with jammed cartridges

(Q)- Quist

The "DN" referred to the patent identification associated with the helmet's model or type

For example

Original Belgian Browning 1910 7.65mm FN Magazine (7 Rounds) Hand Select:Yes It is a wooden handleOriginal Item: Browning Model 1910 7. 65mm 7 shot pistol magazine in very good condition. Purchased directly from European government military storage probably WW2 or earlier production. Note: Not all magazines will bear FN markings. Stamped markings are often faint, worn, or omitted completely.