Yes it's having collector value.
It really have little interest for the shooters.
As for the value itself, it really depends on where you are.
I would suggest you to go to your local Gun Show and spend some time with talking to your local ammo collectors. They may give you good money for it.
Here are the Years of manufacture and description of those wich are known to exist;
Headstamp Annulus Colour No. Of Rings Ring Colour Official Colour / Year
DAC 19 22 VII Purple One (Large) Green 1922 Match
DAC 19 22 VII Red One (Large) Green 1922 Match
DAC 19 24 VII Purple Six (Small) Purple 1925 Match
DAC 19 25 VII Purple Six (Small) Green 1926 Match
DAC 19 26 VII Purple Six (Small) Purple 1927 Match
DAC 19 27 VII Purple Six (Small) Blue 1928 Match
DAC 19 28 VII Purple Three Red 1929 Match
DAC 19 28 VII Purple Three Purple 1929 Match
DAC 19 29 VII Purple Three Green 1930 Match
DAC 19 31 VII Purple Three Blue 1932 Match
DAC 19 32 VII Purple Four Red 1933 Match
DAC 19 33 VII Purple Four Green 1934 Match
DAC 19 34 VII Purple Four Green 1934 Match
DAC 19 34 VII Black Four Purple 1935 Match
DAC 35 VII Purple Four Blue 1936 Match
DAC 36 VII Purple Two Red 1937 Match
DAC 37 VII Purple Two Green 1938 Match
DAC 38 VII Blue Two Purple 1939 Match
DAC 39 VII Purple Two Blue 1940 Match
DAC 44 VII Purple One Purple
DAC 44 VII Purple One Green 1945 DCRA Match
DAC 1943 VII Copper Berdan primer Case completely painted BLACK Thought to have been used for the 1948 Olympic Matches
These were selected from the one or two of the best lots of the previous year and kept aside for the next DCRA Match. Most of these were packed in paper, showing 10 units.
DAC 35 Mk7(Manufactured in 1950) Non, but Nickle plated Berdan primer
Were specially manufactured in 1950 from 1945 cases for Match purposes.
