Amazon.com : Sharp Calculators EL-W535TGBBL 16-Digit Scientific Calculator with WriteView, 4 Line Display, Battery and Solar Hybrid Powered LCD Display, Black & Blue, Black, Blue, 6.4" x 3.1" x 0.6" x 6.4" :
Sharp EL-334W Large Desktop Calculator, 12-Digit LCD | OfficeCrave.com
Amazon.com : Sharp Calculators EL-W535TGBBL 16-Digit Scientific Calculator with WriteView, 4 Line Display, Battery and Solar Hybrid Powered LCD Display, Black & Blue, Black, Blue, 6.4" x 3.1" x 0.6" x 6.4" :
Sharp El-531w Scientific Calculator | eBay
Sharp EL-531TG Scientific Calculator - University Book Store
Amazon.com : Sharp EL-531TGBBW 12-Digit Scientific/Engineering Calculator with Protective Hard Cover, Battery and Solar Hybrid Powered LCD Display, Great for Students and Professionals, Black,Black and White : Office Products