Use "0000 site:http://figs4fun.com" where 0000 is replaced by the number you seek. For numbers of less than 4 digits, include zeros as a prefix so that there are 4 digits: so 719 becomes 0719. That will take you to the appropriate page. Then use the search function in your browser to find the number on the page. The space between the number and "site" is essential.