Cape of Good Hope 1902 Oval Datestamp Used as Canceller on Card

1902 QV PENNY ovpt postcard (H&G 11) to Germany cancelled JANSENVILLE OVAL DATESTAMP 6 DE (latest recorded date, previously 1880), Graaff-Reinet transit cds 6 NO (wrong date) and arrival mark 29 12 02. Uncommon use of the oval date stamp as a canceller thus, and proving use after more than 40 years. VF.