My immediate problem with this, although a very good tip all the same :0 is that while you may be getting more 'hits', selling items might not necessarily be more likely for certain types of items?
For instance, if I sell a heavy lot of less valuable coins, the postage would be high because of weight but the items not valuable enough to get higher bids?
I am worried about them not being seen in the Uk because the audience might not be specialised enough! They may not be even looking for those coins...so they might ignore it anyway..
I will give it a try though!