The lion is a symbol for deathless courage, strength, fearlessness, bravery and royalty. Seen as the lord of the land, the lion is compared to the Eagle which is supreme in the air. Lion is one of the favorite symbols of leadership, warriors and emperors.
You must give the exemption certificate to the seller within 90 days after the date of the purchase. Otherwise, both you and the seller could be held liable for the sales tax. Sellers have the right to refuse your exemption certificate, even if it is correct and properly completed.
FAR 61.197(b) says that as long as your CFI certificate has not expired you can renew it any time for an additional 24 calendar months from the month you renew it by following any of the above methods.