How much is a Victorian orange halfpenny stamp worth?
The Queen Victoria orange half penny stamp is worth around $17 if used, and $100 if unused. Some varieties can go as high as $1,000 if unused.
Much like the question "How much is an old coin worth?", one needs more specifics. What country is it from? Is stamp new or used? In what condition? How is centering? Any unusual printing flaws? Can you identify the year of the revenue stamp? With some exceptions, the likelihood is that the value of the stamp will not be substantial. Consult a postage stamp catalog, you can often find them in your local library and…
It depends on: A) The year B) The mintmark (if applicable) C) The condition D) The country of origin Without knowing this information, it is impossible to say whether this coin is worth less than a cent (British decimal halfpenny) to several thousand dollars or more (top-grade hammered coins or some rare Victorian varieties)
Unable to find a US stamp that matches this brief description. In general, most used US postage stamps are worth 15 or 20 cents, the minimum amount required to catalog and stock the stamps. Unused will always be worth at least their face value. Special cancellations and different values are likely to be worth more. Consult a postage stamp catalog, usually available at your local library for exact identification and catalog values.
If uncirculated, all US stamps are perpetually worth their face value as postage. If cancelled (in other words, to a stamp collector) it varies considerably from stamp to stamp. Uncancelled World War II stamps - to a collector - are probably worth the most. In stamp collecting, as a general rule, any uncancelled stamp is worth more than the same stamp that has been cancelled.