The second and more recent type of dichroic glass uses a vacuum deposition process to add layers of various metallic oxides on top of the glass. This is what most people think of as dichroic glass and the focus of our explanation since it is precisely this type of dichro used in Trezora's jewelry and art glass. truly amazing example of this type of dichroic glass is the Lycurgus Cup. The Lycurgus Cup was created in the 4th century AD in Italy. In reflected light the glass appears green. In transmitted light the glass appears red.
Confusing question: Adults who completed the primary tetanus series at anytime in the past (infancy, childhood, teens or adults) would only need a tetanus shot every 10 years. Some who engage in gardening or landscape work may get boosters at 5 yr point. If you never had a previous series then it would be wise to do so.
Your doctor may recommend that you have a tetanus-containing booster vaccination if you are 50 years or older and you have not had a tetanus booster vaccination in the previous 10 years, if you have been injured, or before travelling. Ask your doctor for advice. The tetanus vaccine can be given to pregnant women.