The short answer: yes, there is value in it, even though some coins look cleaned or otherwise unattractive (dirty, but resist the temptation to clean them: if you don't know how to do it properly, you may ruin them altogether). The 1905 Guilder makes me drool…
Just start to catalog your coins here on Numista as best as you can, and from the coin pages, you will already get an indication of the value.
I see that you are from Indonesia: it is worth remarking, particularly for other Numista users who are less familiar with the colonial history of Indonesia, that in the Netherlands East Indies, the Dutch homeland coins were used for denominations of ½ guilder and higher, while there were special East Indies coins for ¼ guilder and lower. So your collection of coins perfectly reflects what was circulating in Indonesia in the colonial days. Final remark: in those days, 2½ guilders was a lot of money.