Type A as it has Oval OZS stamp Harrington very desrable also. both have a pricerange $800 -$ 1,200AUD is a fair estimate but I have seen them go for more in a bidding war etc.
Obviously everyone is aware of the new Perth Mint 1 kilo silver bars as of 19 May 2023. For years I've been on Perth's back asking for their bars to include the words "silver" and 9999; now we have the new kilo bars. Hopefully, the 10oz bars will resume production and the words ‘10oz FINE SILVER 9999’ From memory, the change has taken about 5 years. https://www.perthmint.com/shop/bullion/cast-bars/perth-mint-1-kilo-silver-cast-bar/
see post 243 - original photo by me , posted long ago somewhere in the forum. on the "OZS" A & B ; one has rounded edge the other more square. A has longer OZS than B and slimmer. Suffix , Prefix are rare too ; later introduced "A" , do not determine they are A Type They are used because type B , use the same serial. (suffix ) So Prefix and Suffix have been introduced, to save confusion of same serial numbers. Years after this ; All have been dropped out. This punching do consumed many man hours. Today bars , don't have serial numbers except larger bars or dore bars ( 11 kg to 15 kg varies in weight ) The 10 oz standard now was taken out due to cost effectiveness, as labour cost increases.